/Engine/Source/Runtime/AnimGraphRuntime/Public/RBF/RBFSolver.h
Given a list of targets, verify which ones are valid for solving the RBF setup. This is mostly about removing identical targets which invalidates the interpolative solver. Returns true if all targets are valid.
static bool ValidateTargets ( const [FRBFParams](API\Runtime\AnimGraphRuntime\RBF\FRBFParams) & Params, const [TArray](API\Runtime\Core\Containers\TArray)< [FRBFTarget](API\Runtime\AnimGraphRuntime\RBF\FRBFTarget) > & Targets, [TArray](API\Runtime\Core\Containers\TArray)< int > & InvalidTargets )